| File name: | nsd.zip |
| Full analysis: | https://app.any.run/tasks/a23d42fb-e27a-4098-ab9f-d0fd1f982faf |
| Verdict: | Malicious activity |
| Threats: | A backdoor is a type of cybersecurity threat that allows attackers to secretly compromise a system and conduct malicious activities, such as stealing data and modifying files. Backdoors can be difficult to detect, as they often use legitimate system applications to evade defense mechanisms. Threat actors often utilize special malware, such as PlugX, to establish backdoors on target devices. |
| Analysis date: | January 31, 2024, 18:17:49 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/zip |
| File info: | Zip archive data, at least v2.0 to extract |
| MD5: | 935C5D8492152FD207BEB40B69DB8D73 |
| SHA1: | 6FF4397CC299411B74FB893BB9792F1F43FB3BE7 |
| SHA256: | 4B6F0AE4ABC6B73A68D9EE5AD9C0293BAA4E7E94539EA43C0973677C0EE7F8CB |
| SSDEEP: | 6144:ex747YvwugxCw5WJnWCnBGRm8StkRlfvCqD:6yM8n5WJWmtqN1D |
MALICIOUS
Drops the executable file immediately after the start
- nsd.exe (PID: 3564)
TONESHELL has been detected (SURICATA)
- nsd.exe (PID: 3564)
SUSPICIOUS
Executable content was dropped or overwritten
- nsd.exe (PID: 3564)
INFO
Executable content was dropped or overwritten
- WinRAR.exe (PID: 532)
Checks supported languages
- nsd.exe (PID: 3564)
- wmpnscfg.exe (PID: 3756)
Reads the computer name
- nsd.exe (PID: 3564)
- wmpnscfg.exe (PID: 3756)
Drops the executable file immediately after the start
- WinRAR.exe (PID: 532)
Creates files in the program directory
- nsd.exe (PID: 3564)
Manual execution by a user
- nsd.exe (PID: 3564)
- wmpnscfg.exe (PID: 3756)
Reads the machine GUID from the registry
- nsd.exe (PID: 3564)
Creates files or folders in the user directory
- nsd.exe (PID: 3564)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .zip | | | ZIP compressed archive (100) |
|---|
EXIF
ZIP
| ZipRequiredVersion: | 20 |
|---|---|
| ZipBitFlag: | - |
| ZipCompression: | Deflated |
| ZipModifyDate: | 2024:01:31 09:33:14 |
| ZipCRC: | 0xa2410ce5 |
| ZipCompressedSize: | 89593 |
| ZipUncompressedSize: | 145720 |
| ZipFileName: | BrMod104.dll |
Total processes
41
Monitored processes
3
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 532 | "C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\nsd.zip" | C:\Program Files\WinRAR\WinRAR.exe | explorer.exe | ||||||||||||
User: admin Company: Alexander Roshal Integrity Level: MEDIUM Description: WinRAR archiver Exit code: 0 Version: 5.91.0 Modules
| |||||||||||||||
| 3564 | "C:\Users\admin\Desktop\nsd.exe" | C:\Users\admin\Desktop\nsd.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 3756 | "C:\Program Files\Windows Media Player\wmpnscfg.exe" | C:\Program Files\Windows Media Player\wmpnscfg.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Media Player Network Sharing Service Configuration Application Exit code: 0 Version: 12.0.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
1 176
Read events
1 156
Write events
20
Delete events
0
Modification events
| (PID) Process: | (532) WinRAR.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (532) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 3 |
Value: C:\Users\admin\Desktop\virtio_ivshmem_master_build.zip | |||
| (PID) Process: | (532) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 2 |
Value: C:\Users\admin\Desktop\phacker.zip | |||
| (PID) Process: | (532) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 1 |
Value: C:\Users\admin\Desktop\Win7-KB3191566-x86.zip | |||
| (PID) Process: | (532) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\ArcHistory |
| Operation: | write | Name: | 0 |
Value: C:\Users\admin\Desktop\curl-8.5.0_1-win32-mingw.zip | |||
| (PID) Process: | (532) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | name |
Value: 120 | |||
| (PID) Process: | (532) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | size |
Value: 80 | |||
| (PID) Process: | (532) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | type |
Value: 120 | |||
| (PID) Process: | (532) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths |
| Operation: | write | Name: | mtime |
Value: 100 | |||
| (PID) Process: | (532) WinRAR.exe | Key: | HKEY_CURRENT_USER\Software\WinRAR\Interface\MainWin |
| Operation: | write | Name: | Placement |
Value: 2C0000000000000001000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF42000000420000000204000037020000 | |||
Executable files
4
Suspicious files
1
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3564 | nsd.exe | C:\ProgramData\gameinstall\BrMod104.dll | executable | |
MD5:9986675DD46EBD333589419456A70C50 | SHA256:2A00D95B658E11CA71A8DE532999DD33DDEE7F80432653427EAA885B611DDD87 | |||
| 532 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DRa532.7006\BrMod104.dll | executable | |
MD5:9986675DD46EBD333589419456A70C50 | SHA256:2A00D95B658E11CA71A8DE532999DD33DDEE7F80432653427EAA885B611DDD87 | |||
| 3564 | nsd.exe | C:\ProgramData\gameinstall\nsd.exe | executable | |
MD5:12A77201922AF5EB8302B24401817FCD | SHA256:CE4F7E7CE82A5621B5409CCB633E27269A05CE17D1B049FEDA9FBC4793E6C484 | |||
| 532 | WinRAR.exe | C:\Users\admin\AppData\Local\Temp\Rar$DRa532.7006\nsd.exe | executable | |
MD5:12A77201922AF5EB8302B24401817FCD | SHA256:CE4F7E7CE82A5621B5409CCB633E27269A05CE17D1B049FEDA9FBC4793E6C484 | |||
| 3564 | nsd.exe | C:\Users\admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1302019708-1500728564-335382590-1000\a6356ecc6025d4d797fc752f6fd045e2_90059c37-1320-41a4-b58d-2b75a9850d2f | binary | |
MD5:3FC7E09170C27C7FC9C3528478D0CEBD | SHA256:FED9FC43BEEC04D9967E6ED8CA0A309D5112F16338D2FB588997C35F7B7A221A | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
14
TCP/UDP connections
18
DNS requests
0
Threats
21
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3564 | nsd.exe | POST | 404 | 123.253.32.15:443 | http://www.download.windowsupdate.com:443/msdownload/update/v3/static/trustedr/en/fhKiMCWdHk66ATY7uIFOJmryb | unknown | — | — | — |
3564 | nsd.exe | POST | 200 | 123.253.32.15:443 | http://www.download.windowsupdate.com:443/msdownload/update/v3/static/trustedr/en/srrbp8IUhZemJUCBKWDrQhyCU | unknown | text | 8 b | — |
3564 | nsd.exe | POST | 200 | 123.253.32.15:443 | http://www.asia.microsoft.com:443/v11/2/windowsupdate/redir/v6-winsp1-wuredir?878182977 | unknown | text | 24.0 Kb | — |
3564 | nsd.exe | POST | 200 | 123.253.32.15:443 | http://www.asia.microsoft.com:443/v11/2/windowsupdate/redir/v6-winsp1-wuredir?878182977 | unknown | text | 24.0 Kb | — |
3564 | nsd.exe | POST | 200 | 123.253.32.15:443 | http://www.download.windowsupdate.com:443/msdownload/update/v3/static/trustedr/en/WfqZryA_JvIzAUhGiyikKPPOM | unknown | text | 8 b | — |
3564 | nsd.exe | POST | 404 | 123.253.32.15:443 | http://www.download.windowsupdate.com:443/msdownload/update/v3/static/trustedr/en/EquN3G_Y4YtyECTJ_AW0ZMkmP | unknown | — | — | — |
3564 | nsd.exe | POST | 200 | 123.253.32.15:443 | http://www.download.windowsupdate.com:443/msdownload/update/v3/static/trustedr/en/ppcxJh_r3YFG4SEqhs_mOeHSv | unknown | text | 8 b | — |
3564 | nsd.exe | POST | 200 | 123.253.32.15:443 | http://www.download.windowsupdate.com:443/msdownload/update/v3/static/trustedr/en/AHVOBmuYTtcRH3bJ81ph6lLjf | unknown | text | 8 b | — |
3564 | nsd.exe | POST | 200 | 123.253.32.15:443 | http://www.asia.microsoft.com:443/v11/2/windowsupdate/redir/v6-winsp1-wuredir?878182977 | unknown | text | 24.0 Kb | — |
3564 | nsd.exe | POST | 200 | 123.253.32.15:443 | http://www.download.windowsupdate.com:443/msdownload/update/v3/static/trustedr/en/ML6XNafAIieyVLnDHuYG0QRch | unknown | text | 8 b | — |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:138 | — | — | — | unknown |
4 | System | 192.168.100.255:137 | — | — | — | unknown |
1080 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
3564 | nsd.exe | 123.253.32.15:443 | — | Gigabit Hosting Sdn Bhd | MY | unknown |
DNS requests
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Malware Command and Control Activity Detected | BACKDOOR [ANY.RUN] PUBLOAD Activity (Earth Preta / Mustang Panda) |
— | — | Potentially Bad Traffic | ET POLICY HTTP traffic on port 443 (POST) |
— | — | Potentially Bad Traffic | ET POLICY HTTP traffic on port 443 (POST) |
— | — | A Network Trojan was detected | ET MALWARE Earth Preta PUBLOAD Activity M3 |
— | — | Potentially Bad Traffic | ET POLICY HTTP traffic on port 443 (POST) |
— | — | A Network Trojan was detected | ET MALWARE Earth Preta PUBLOAD Activity M3 |
— | — | Potentially Bad Traffic | ET POLICY HTTP traffic on port 443 (POST) |
— | — | Potentially Bad Traffic | ET POLICY HTTP traffic on port 443 (POST) |
— | — | Potentially Bad Traffic | ET POLICY HTTP traffic on port 443 (POST) |
— | — | Potentially Bad Traffic | ET POLICY HTTP traffic on port 443 (POST) |